|032001||I want to measure variation
of a signal and to alarm when the variation (deviation from the initial
value) exceeds a certain value.
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|032002||I want to have an alarm when
the temperature difference in 2 measuring points exceeds the preset range.
I need to distinguish positive temperature difference (deviation) from negative
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|032003||ON/OFF pump control
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|032004||I plan to monitor in an office
valve travel installed in the field. Can I get four alarm contact signals
(HH, H, L, LL) by just installing a pair of CVV cales between the field
and the office?
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|032005||Smooth tank level control
by staging four pumps
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|032006||Deviation alarm or water
level difference and driftage separator protection in open channels
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|032007||One of the AYDV's input signals
is limited to 1-5Vdc. Our customer wishes to have both inputs 4-20mA DC.
Can we use the resistor module?
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|032078||We are fish farmer. There are 2(two) illuminating
lamp beside a farm pond and these lamps are turned on all the time. For
prompt system recovery purpose, wed like to have alarm contact signal
when the lamps could be run off or failure. Does M-System have any limit
alarm unit for this purpose? We are using 60W illuminating lamp that is
supplied 100V AC power input.
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|032133||Wed like to monitor a driving current
of a motor, which is installed in our factory line. If the driving current
becomes over-current, we need to send an alarm contact signal to a PLC so
that the PLC can send a shutoff signal to the motor. However, we dont
need to respond to inrush current, which is usually generated when motor
Does M-System have a suitable unit to meet the requirement above?
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|032153||We have a wheeled platform operated by 48V DC (connected 2 pcs. of 24V DC batteries in series). The batteries are also used as 24V DC power supplies of the PLC and relays. I want to get an alarm output when battery voltage drops to 20V DC. However, usually a limit alarm module won’t function when its power supply drops to that level. Is there any suitable product for this case?
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|032159||The dust eliminator is used at sand basin of sewage treatment plant. It is controlled to operate by comparing the water levels. Across the filter, water levels are compared and the dust eliminator is operated when the difference becomes greater. We are considering to use a deviation alarm that accepts signals from 2 sets of 2-wire type level sensors. Two relay outputs are used for alarming “water-level difference normal” and start operating the dust eliminator at “water-level difference abnormal”. It is also required the current loop supply as there is no power source available where sensors are installed.
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